The Corporate Tax Law and the Tax Exemption and Reduction Control Law provide reserves, special depreciation, exclusion from gross income, tax-exempt income, income deductions, tax credits, and tax reductions as tax incentive methods available to corporate enterprises. These tax incentive methods produce different financial effects. Among these, reserves and special depreciation provide benefits through favorable cash flows resulting from the deferral of corporate tax payments, while other tax incentive methods bring about permanent reductions in corporate tax burdens. Meanwhile, the current tax incentive system excludes overlapping support between certain incentive methods and limits the practical use of tax incentive methods through the application of a minimum tax system. Therefore, corporations need to devise plans for selecting the optimal combination of tax incentive methods under given constraints. In this paper, the financial effects of the various tax incentive methods available to corporate enterprises were modeled. Additionally, an objective function for maximizing cash flows through tax savings and a mathematical programming model for selecting the optimal combination among available tax incentive methods under given constraints were formulated, and a computational example was presented.